Adding demo yang models and working on yang model packaging.

Change-Id: Ief674880920cf6165c863909298eb4fa6dd3fb64
diff --git a/buck-tools/BUCK b/buck-tools/BUCK
index afc1815..6d05f9e 100644
--- a/buck-tools/BUCK
+++ b/buck-tools/BUCK
@@ -41,3 +41,14 @@
   visibility = ['PUBLIC'],
 )
 
+export_file(
+  name = 'yang-registrator',
+  src = 'yang-registrator',
+  visibility = [ 'PUBLIC' ],
+)
+
+export_file(
+  name = 'yang-schema',
+  src = 'yang-schema',
+  visibility = [ 'PUBLIC' ],
+)